Film-drier.



C'. MAUK. YOUNG.

FILM DRIER.

APPLICATION' FILED AUG.1, 1913.

1,108,306. Patented Aug.25,1914

2 SHEETS-SHEET 1.

7 0.7; WWW www( c. MACK. YOUNG;

FILM DRIBR.

APPLICATION FILED AUGJ, 1913.

1,108,306. i v Patented Aug.25,1914.

2 SHEETS-SHEET 2.

-UNrrED STATES PATENT OFFICE. i

cHAnLEs mexENz'rE rounder; o'r'rAwA, ONTARIO, CANADA, AssIGNoB. OE'ONE- mmm) 'ro 'rnonAs BEGINALn Alumni. Ann omarnmp rro CLAUDE renin, Born 0F OTTAWA, ONTARIO, CANAD.

FILM-DBIEB.

. `spegziileation of Letters Patent.'v

Application iiled August 1, 1913. Serial Io. 782,494.

Patented Aug. 25, 1914.

ments in Film-Driers, of which-the follow-A ing is a specification.

The invention relates to improvements in photographic drying apparatuses, and the objects of the invention are to devise a means of' rapidly drying a quantity of either films, plates or'prints, or all of these together, if desirable, withoutY being governed or hindered b atmospheric conditions in a systematic, e cient, and inexpensive way, calculated to produce uniform results at all times.

The invention consists essentially in the novel construction and arran ment of parts anddevicesA hereinafter ful y describedl in the following specification and the drawings that form part of the same.

In the drawings, Figure 1 is an end elevation, showing the outer casing partly in section, of a device constructed according to my invention.- Fig. 2 shows a side elevation, looking in the direction ofthe arrow A in Fig. 1. Fig. 3 showsa side elevation of the device assembled, looking in the direction of the arrow Bl in' Fig. 1 and-showing the arrangement of the vadjustable Ventilating doors. Fig. 4 shows a sectional elevation taken longitudinally through the device with the cover removed. 5 shows'a perspective view of one of the print-holding trays in its open position. Fig. 6 shows an end sectional elevation of the same tray in its closed position.. Fig. 7 shows a plan view .of a ilml'iolding rack, and Fig. 8 shows a side elevation in section of the same 12 at one end, completely closing that en at the other end has an -a1r and -gas chamber v13 of any standard or usual design, and a gas inlet pipe 14. Along the i pipe 11 at suitable intervals is arranged a series 4of perforations 9, adapted to permit of an even and regular egress of.mixed gas,4

so that, when a light is applied to the outside of the pipe near these perforations,`

there will be a smokeless and preferably blue flame allv along the outside of the pipe where the perforations are. There is a spider or end frame 15 and 16 at either end of the perforations, and these spiders are rotatably mounted on the pipe 11. The spiders are connected together by a drum 17,

which has a plurality of longitudinally ex- ,o

tending slits 18 arranged to correspond more or less with the erforations 9 on the lpipe 11. A pulley 19 1s lsecured to the spider 16, and may be of any suitable design, that is either flat, cambered or grooved, orl if desirable, a sprocket wheel may be used in its place, as a means of im arting rotary motion to the spider 16 an the other moving parts which are secured thereto and driven thereby. 20 represents flanges which are secured, respectively to the spiders 15 and 16, and these flanges may be made each in one piece, or for-convenience of manufacture, I may prefer to make them in sections for a large size of machine. These flanges extend radially outward, and are each provided with a plurality of obliquely inclined grooves 21 (see Figs. 1, 4 and 8) on that side facing the opposite flange 20. The 'exact angle at which these grooves are to be set, I do not wish tolimit myselfto, since that is governed by variable circumstances, such as the power to be consumed in rotatin the device, the rotary speed required, an

the' speed of drying which is necessary.

The purpose of the grooves, is to act as a container for4 the print-holding trays 22 (Fig. 4 arrangement; Figs. 5 and 6 detail) or the film holding racks 23 (Figs. 7 and 8). These racks or trays are, when filled with their respective contents, slid into the ,rossana the necessity for an ecient means of securing the trays.

Referring to the trays 22 for holdingl prints, l prefer to make these (seeFigs. and 6) in the form of two rectangular frames 26'hinged together, each frame being covered by a strip of such material as cheesecloth 2T on its face which, when closed, will be adjacent the other frame to which it is hinged. The prints are laid flat on the cheese-cloth on one of these frames, and the other frame is closed on top ot the prints,

so that they are held between the two layers of cheese-cloth or the like, and do not actu* ally touch the framework.

lThe method of constructing the lilm racks 23 is shown in Figs. 7 and 8, in which a rectangular trame 28 is shown, having a short groove or slit 29 at one end ot the longer sides 30, and a longitudinally extending slit 31 extending nearly the whole remaining length oit these sides 30. The rack.

, passing the film around the adjustable member 35, so that its other end comes back to the rstfme'ntioned end, and may be pressed over the same spike 33. rlhis adjustable member 35 is slidably secured in the grooves 31, and has a curved face 36, adapted to re ceive the non-sensitive side of the film, without cracking or-marking it. After the lm has beenl secured on the spike 33, the bar 34C is pressed tight against the end 37 of the trame 23 and is secured to it by the catch 38, which may be hinged to the end 37, or otherwise secured thereto. rlhe adjustable member 35 is then slid along the frame to tighten the film, and secured in the desired position by thumbscrewg 39 or the like which extend through the lits 31. In the case of exceptionally long 'nlms being used, it may be desirable to use a spacing roller or bar 40, to prevent the sides of the film from flapping and touching one another when being rotated. 'llhe spacing roller 40 is provided with thumbscrews 41, which extend through the slots 31.

lln the operation of the device, when all the prints and films have been mounted and secured in the rotatable drum, the gas Supply is turned on, and a lighted taper is passed between the arms of the end spider 15 or 16, to light the gas; vthe lid 4t2 of the outer cover, which is preferably hinged to the base 10, is then closed, and by means of a belt or the like (notillustrated) which passes through suitable oriices in the cover, and engages the pulley 19, the drum is rotated, causing a blower-like action, and sucking hot air between the trays 1n an outward directlon. In view of the incoming gas, and

the need for ventilation to keep the gas 'opened or shut to adjust thetemperature ot the device.

It has been found in practice, that a very few minutes use ot' this device is suiticient to dry a great number of films or prints, and that by careful regulation of the gas and ventilation, the gelatin is never melted or the film or prints hurt in any way.

ln order to prevent excessive end-play, l

have illustrated the spacing collars tjbetween the rotating drum and the frame; but as this is not an essential feature of the invention, l do not propose to be limited by the exact construction of end play preventatives;

As many changes could be made in the above construction and many apparently widely diiderent embodiments of my invention within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What l claim as my invention is:

1. A photographic drying apparatus comprising' a casing, aseries` of rotatably mounted trames or racks in said .casing and means for heating said frames or racks.

2. A photographic dryinv apparatus comprising a casing, a rotatably mounted drum in said casing, a series of frames or racks mounted on said drum in said casing, and means for heating said drum.

3. A photographic drying apparatus comprising a casing, a rotatably mounted drum in said casing, a series of frames or racks mounted on said drum in said casing, means for heating said drum, means of vVentilating said casing and drum, and means for regulating said ventilation.

4. A photographic drying apparatus comprising a casing, a rotatably mounted drum in said casing, a series of frames or racks mounted on said drum in said casing, means for heating said drum, means of Ventilating said casing and drum, and means for regulating said ventilation, said means comprising adjustable doors in said casing.

5. A photographic drying apparatus, comprising a casing, a rotatably mounted drum in said casing, a series of frames or racks mounted on said drum in said casing, means for heating said drum, means of Ventilating said casing and drum, and means for regulating said ventilation, and means for rotating said drum in said casing;

'5. A photographic drying apparatus com.-

Iii-isiiig a casing, a perforated pipe within said casing, a drum rotatably mounted on said pipe, a series of frames or racksv mounted on said drum, in said casing, means for introducing gas to said pipe, and means for Ventilating said casing and drum, and means for regulating said ventilation.

7. A photographic drying apparatus, comprising a casing with a hinged cover, said casing being formed with a slot and with adjusting doors adapted to permit of and regulate the ventilation; a drum having a series of racks peripherally mounted thereoii, being rotatably mountedv in said casing; and means of heating said 'casing and said drum.

8. A photographic drying apparatus conipiising a casing,.a spindle, spiders mounted on said spindle, a drum mounted on said spiders and in said casing, said drum having Ventilating slots formed on its periphery; and racks secured on the outside of said drums.

9. A photographic drying apparatus comprising a casing, a hollow spindle mounted therein, means for mixing gas and air secured to one end of said spindle, a drum having racks peripherally mounted thereon rotatably secured to said spindle and in said casing; and a pulley connected to said drum and adapted to transmit rotary motion to said drum. j,

10. A photographic apparatus comprising a casing, a spindle, spiders and a drum on said spindle and/in said casing; fianges extending radially from said spiders and said drums, said flanges having means for securing racks therebetween, said meanscompris-y iiig the formation of obliquely inclined slots iii said flanges, and means for retaining said racks from leaving said slots by gravity or centrifugal force. 1

11. A photographic apparatus comprising a casing, a spindle, spiders and a drum on' said spindle and in said Casing; flanges eX- tending radially from said spiders and said drums, said fianges having means for securing racks therebetween, said means comprisj ing the formation of obliqiiely inclined slots in said fianges, and means for retaining said racks from leaving said slots by gravity or j centrifugal force, said means -comprising a belt having a buckle, secured around the outer periphery of said racks.

12. In a photographic drying apparatus,

. adjusting a casing, a drum, heating means for ysaid drum and casing, trays and racks adapted to be secured to said drums, said racks each comprising a rectangular frame having grooves and slots formed in its opposite sides; means for securing a film or films in said rack, said means comprising'a bar having tongues at opposite ends adapted to slidably secure said bar between said sides of said frame in said grooves; spikes projecting from said bar; means for securing said bar and spikes against one end of the frame.

13. In a photograpic drying apparatus, a casing, a' drum, heating means for said drum and casing, trays and racks adapted to be secured to said drums, said racks each comprising a rectangular frame having grooves, f and slots formed in its opposite sides; means for securing al film or films in said rack, said means comprising a bar having spikes slidably secured in said frame, means for clamping it against said frame and thereby holding the extreme ends of a film; an adjusting bar having a curved face adapted to engage approximately the center of the film, and maintain said film under tension during the dryin process, means for securing said gbar in any desired' position. 14.-. Ina photographic drying apparatus,

sav

a casing, a drum, heating means for said A drum and casing, trays Vand racks adapted to, be secured to said drums, said racks each comprising a rectangular frame having' grooves, and slots formed in its opposite sides: means for securing a film or filmsin said rack, said means comprising a bar having spikes slidably secured in said frame, means for clamping it against said frame and thereby holding the extreme ends of a film; an adjusting bar having a curved face adapted to engage approximately the center of the film, and maintain said film under tension during the drying process, means for securing said adjusting bar in any desired position, a spacing bar secured intermediate of said adjustable bar and said spiked bar, adapted to prevent the sides of said film from coming in contact with one another.

'In witness whereof I have hereunto set my hand liii the presence of two Witnesses.

CHARLES MACKENZIE YOUNG. Witnesses:

RUSSEL S. SMART, y

J. M. GARROW. 

